The HOME Delay Inserter is a delay processing app that can be used to delay video, audio and meta streams. The amount of delay is selected by the user and can be applied independently to each essence type - for example, to offset the audio from the video.

The maximum delay that can be applied to the video is 362 fields / frames. Note that this includes the 2 fields / frames of inherent delay (latency) that is added by the app itself.

Applications include system-level synchronization of audio and video, sublevel alignment processes, lipsync issues and to provide profanity delay for live productions.

This app is part of the current release of HOME Apps, and benefits from the usual advantages of a HOME Apps environment: deployment on standard network servers; instant availability; flexible resource allocation through Lawo Flex licensing; integration with external broadcast control systems, such as Lawo's VSM.

Key Features & Specification

I/O

  • 1x input receiver (RX 1): supports Video (only); Video and Audio; Video and Meta; or Video, Audio and Meta.
  • 1x output sender (TX 1): supports Video (only); Video and Audio; Video and Meta; or Video, Audio and Meta.

Video

  • Video input and output formats: SMPTE ST 2110-20, SMPTE ST 2110-22 (JPEG XS), NDI, SRT
  • Resolution*: SD, HD, 3G, UHD (3840x2160)

(*) JPEG-XS only supports the HD, 3G and UHD formats.

Audio

  • Audio processing: 16 bits, 24 bits at 48kHz
  • Audio inputs and outputs: up to 8 x audio streams (send and receive); maximum of 64 channels in total
  • Fully flexible audio channel shuffling (via I/O Routing)

Delay Times

  • Video Delay
    • Min. = 2 fields / frames; this is the inherent delay (latency) through the app.
    • Max. = 362 fields / frames, including the 2 fields / frames delay through the app.
  • Audio Delay*:
    • Min. = 40ms @ 50Hz / 33.4ms @ 59.94Hz
    • Max. = 10,922ms @ 50/60Hz
  • Meta Delay*:
    • Min. = 2 fields / frames
    • Max. = 512 fields / frames

(*) The audio and meta delay can also be offset using a negative value relative to the video delay. 

Control

  • Data sources:
    • HOME API (NATS)
    • NMOS (via HOME's NMOS Exporter)
  • Configured and managed by HOME
  • All parameters available via HOME API; allows integration with external broadcast control systems.